Description

The arsenate family of minerals has a lot of colorful members. Many
of them were found in Cornwall, England, but there are many other
locations that have produced a specimen or two over the years. El
Teniente Chalcophyllites show up, but not all that frequently, and
never more than a few. This fine specimen was originally sold in
1964 by Schortmann's Minerals, an old-line dealer in Massachusetts,
to noted author, researcher and book dealer/collector - John
Sinkankas. It subsequently ended up in the inventory of dealer John
Attard. This specimen is quite rich in pearly turquoise-blue
crystals of Chalcophyllite: a rare Copper Arsenate. Along with it
are dark green, botryoidal groups of another Copper Arsenate:
Cornwallite. The specimen is larger than most and shows broad
expanses of the Chalcophyllite 'frosting.' Its condition is
pristine and it will stay that way as long as experimental fingers
refrain from poking the "pretty sparklers."Overall Measurements: 5.5 x 3.0 x 1.5 inches (13.96 x 7.61 x
0.59 cm)Offered at no reserve.

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